Chaetomium Kunze, Mykologische Hefte (Leipzig) 1: 15 (1817)
Index Fungorum number: IF 953; MycoBank number: MB 953; Facesoffungi number: FoF 01843; 211 morphological species (Species Fungorum 2020), 106 species with sequence data.
Type species – Chaetomium globosum Kunze.
Notes – Chaetomium is the largest genus in Chaetomiaceae. The genus was reviewed by Maharachchikumbura et al. (2016b) and Wang et al. (2016a, b, 2019b). The genera Bommerella, Chaetomidium and Chaetomiopsis were proposed as synonyms of Chaetomium (Moustafa & Abdul-Wahid 1990, Doveri 2008a, Wang et al. 2016a, b, 2019b). Chaetomium contains more than 150 species (Wijayawardene et al. 2017a); they grow on soil and decaying twigs (Wang et al. 2016a, b, Zhang et al. 2017b). Wang et al. (2016a, b, 2019b) described novel Chaetomiaceae taxa collected from indoor environments, which were described as new species. Many new species collected from soil were published by (Zhang et al. 2017b). The genus is characterised by globose, ellipsoid to ovate or obovate, ostiolate ascomata with or lacking ostioles, hypha-like, flexuous, undulate, coiled to simply or dichotomously branched ascomatal hairs, clavate or fusiform, evanescent asci, and limoniform to globose, bilaterally flattened ascospores. Asexual morphs, if produced, are acremonium-like (Wang et al. 2016a).
Species